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Nana76 [90]
3 years ago
6

Can someone please help me ;-;

Mathematics
1 answer:
Naily [24]3 years ago
3 0
\Delta\ \textgreater \ 0\\\\

\Delta=m^2-4\cdot2\cdot8=m^2-64\\
m^2-64\ \textgreater \ 0\\
m^2\ \textgreater \ 64\\
m\ \textgreater \ 8 \vee m\ \textless \ -8\\
m\in(-\infty,-8)\cup(8,\infty)

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Read 2 more answers
Sylvia earns $7 per hour at her after school job. After working one week, she received a paycheck for $91.
makvit [3.9K]

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a.) hours=13

b.) h\leq 15

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Solve for h. Divide both sides by 7:

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Sylvia worked 13 hours at a rate of $7 an hour.

b.) She can work at most 15 hours a week. At 'most' can also mean less than or equal to. Let <em>h</em> be hours:

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Sylvia can work less than or equal to 15 hours per week.

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The most money Sylvia can earn in a week is $105.

<em>Finito.</em>

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